Slab Leak Detection & Repair services in Washington
Whether you saw water on the floor or just heard a drip, what happens in the next 30 minutes matters. Stop reading and call if it's the first one. Most of our work comes from neighbors of past customers. That's the only marketing we trust.
What this service includes
Slab leaks are pinhole leaks in copper plumbing lines that run inside or under a concrete slab foundation. Common in 1960s through 1980s slab-on-grade builds across the Sun Belt and parts of the Midwest.
Signs: warm or wet spots on the floor, unexplained jumps in the water bill, the sound of running water when nothing is on, mildew smell along baseboards. Hot-side leaks show up faster than cold-side because of the warm spot.
Detection runs $280–$480 standalone. We use acoustic listening equipment plus an infrared thermal camera. Once we've located it, you have two repair options.
Option A: re-route the failed line through the attic or crawl space, abandoning the line in the slab. Cost: $1,400–$2,800. Faster, no jackhammer, and future-proofs against the next pinhole on that line.
What's specific about Washington jobs
Newer Washington construction tends to be on slab foundations with PEX. Easier access in some ways, more code-current in others.
That said, newer construction in Washington has its own set of typical issues. We see both.
One we ran last year
Recent Washington job: mildew smell along the baseboard in a 1970s home. We re-routed the cold line and dried the slab after diagnosing slow cold-water slab leak under the kitchen. Cost ran $2275 — pretty middle-of-the-road for that fix.
Cost range
For slab leak detection & repair jobs in the Washington area:
- Slab leak detection (acoustic + infrared): $350 – $600
- Re-route a single line overhead: $1,750 – $3,500
- Pinhole repair in slab (jackhammer): $2,250 – $4,250
- Full re-pipe of slab home (PEX overhead): $10,625 – $22,500